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    <title>Document</title>
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    <script>
        // 1.利用  new Object（）创建对象
        var obj1 = new Object();
        // 2.利用字面量创建对象
        var obj2 = {};
        // 3.利用构造函数创建对象
        function Star(uname, age) {
            this.uname = uname;
            this.age = age;
            this.sing = function () {
                console.log('我会唱歌');
            }
        }
        var ldh = new Star('刘德华', 13);
        Star.sex = '男';
        Star.dance = function () {
            console.log('dance');
        }
        console.log(Star.sex);
        console.log(ldh);
    </script>
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